import { Test, TestingModule } from '@nestjs/testing';
import { INestApplication } from '@nestjs/common';
import request from 'supertest';
import { AppModule } from '../src/app.module';

describe('M3 E2E Tests', () => {
  let app: INestApplication;

  beforeAll(async () => {
    const moduleFixture: TestingModule = await Test.createTestingModule({
      imports: [AppModule],
    }).compile();
    app = moduleFixture.createNestApplication();
    app.setGlobalPrefix('api', { exclude: ['admin-api/(.*)', 'internal/(.*)'] });
    await app.init();
  });

  afterAll(async () => { await app.close(); });

  async function loginAdmin(): Promise<string> {
    const res = await request(app.getHttpServer())
      .post('/admin-api/auth/login')
      .send({ email: 'admin@zhixi.app', password: 'admin123' });
    return res.body?.data?.accessToken || '';
  }

  // ══════════════════════════════════════════════
  // M3-01: Learning Engine
  // ══════════════════════════════════════════════
  describe('M3-01 Learning Engine', () => {
    let token: string;
    beforeAll(async () => { token = await loginAdmin(); });

    it('POST /api/learning-sessions → 201 create session', async () => {
      const res = await request(app.getHttpServer())
        .post('/api/learning-sessions')
        .send({ knowledgeItemId: 'ki-1', title: 'Test Session' })
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('id');
    });

    it('GET /api/learning-sessions → 200 list sessions', async () => {
      const res = await request(app.getHttpServer())
        .get('/api/learning-sessions')
        .expect(200);
      expect(Array.isArray(res.body.data)).toBe(true);
    });

    it('POST /api/ai-analysis → 201 queue analysis', async () => {
      const res = await request(app.getHttpServer())
        .post('/api/ai-analysis')
        .send({ questionText: 'What is this?', knowledgeItemContent: 'Test content', userAnswer: 'Test answer', sessionId: 's1' })
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('jobId');
    });

    it('POST /api/ai-analysis/feynman → 201 queue feynman eval', async () => {
      const res = await request(app.getHttpServer())
        .post('/api/ai-analysis/feynman')
        .send({ knowledgeItemTitle: 'Test', knowledgeItemContent: 'Content', userExplanation: 'Explanation', sessionId: 's1' })
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('jobId');
    });

    it('GET /api/focus-items → 200 list focus items', async () => {
      const res = await request(app.getHttpServer())
        .get('/api/focus-items')
        .expect(200);
      expect(Array.isArray(res.body.data)).toBe(true);
    });

    it('GET /api/activity/summary → 200 learning summary', async () => {
      const res = await request(app.getHttpServer())
        .get('/api/activity/summary')
        .expect(200);
      expect(res.body).toHaveProperty('success');
    });
  });
});